04/11/2008

Combustible Dust Emphasis Program

Facilities that generate or handle combustible dusts are confronted with the
danger of deflagration or other fire hazard when dust is suspended in air or
some other oxidizing medium over a range of concentrations, regardless of
particle size or shape; deflagrations can lead to explosions. Combustible dusts
are often either organic or metal dusts that are finely ground into very small
particles, fibers, fines, chips, chunks, flakes, or a small mixture of these.
Types of dusts include, but are not limited to: metal dust, such as aluminum
and magnesium; wood dust; plastic dust; biosolids; organic dust, such as sugar,
paper, soap, and dried blood; and dusts from certain textiles. Some industries
that handle combustible dusts include: agriculture, chemicals, textiles, forest
and furniture products, wastewater treatment, metal processing, paper products,
pharmaceuticals, and recycling operations (metal, paper, and plastic).

The U.S. Department of Labor's Occupational Safety and Health Administration
(OSHA) recently reissued its Combustible Dust National Emphasis Program (NEP)
Instruction to increase enforcement activities and focus on specific industry
groups that have experienced frequent or catastrophic combustible dust
incidents.

This instruction contains policies and procedures for inspecting workplaces
that create or handle combustible dusts. In some circumstances these dusts may
cause a deflagration, other fires, or an explosion. These dusts include, but
are not limited to:


  • Metal dust such as aluminum and magnesium.

  • Wood dust.

  • Coal and other carbon dusts.

  • Plastic dust and additives.

  • Biosolids.

  • Other organic dust such as sugar, flour, paper, soap, and dried blood.

  • Certain textile materials.




More info


AplusA-online.de - Source: U.S. Department of Labor - Occupational Safety & Health Administration